#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{

	int flags, opt;
	int nsecs, tfnd;

	nsecs = 0;
	flags = 0;
	tfnd = 0;

	while ((opt = getopt(argc, argv, "nt:")) != -1) {
		switch (opt) {
			case 'n':
				flags = 1;
				break;
			case 't':
				nsecs = atoi(optarg);
				break;
			default:
				fprintf(stderr, "Usage:%s [-t nsecs] [-n] name \n", argv[0]);
				exit(EXIT_FAILURE);
		}
	}

	printf("flags=%d; tfnd=%d; nsecs=%d; optind=%d\n",flags, tfnd, nsecs, optind);
	
	if (optind > argc) {
		fprintf(stderr, "Expected argument after options\n");
		exit(EXIT_FAILURE);
	}

	printf("name argument = %s\n", argv[optind]);

	exit(0);
}

